package week2;
public class PrintlnPrintf{
	public static void main(String[] args){
		int i=1;
		double j=2;

		System.out.print("用print输出i："+i);
		System.out.println("用println输出i："+i);
		System.out.printf("i的值为%d，j的值为%f",i,j);

}
}